/* === RESET & VARIABLES === */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --green-50:#ecfdf5;--green-100:#d1fae5;--green-200:#a7f3d0;--green-300:#6ee7b7;
  --green-400:#34d399;--green-500:#10b981;--green-600:#059669;--green-700:#047857;
  --green-800:#065f46;--green-900:#064e3b;--green-950:#022c22;
  --neon:#00ff88;--neon-dim:#00cc6a;
  --font-display:'Outfit',sans-serif;
  --font-body:'Noto Sans SC','Outfit',sans-serif;
  --nav-h:72px;
  --transition-theme:background-color .4s ease,color .4s ease,border-color .4s ease,box-shadow .4s ease;
}
[data-theme="dark"]{
  --bg-primary:#050d09;--bg-secondary:#0a1a10;--bg-tertiary:#0f2318;
  --bg-card:rgba(10,40,24,.55);--bg-card-hover:rgba(16,60,35,.7);
  --text-primary:#e8f5ee;--text-secondary:#94b8a4;--text-muted:#5a7d6a;
  --border:rgba(0,255,136,.1);--border-hover:rgba(0,255,136,.25);
  --glow:0 0 30px rgba(0,255,136,.15);--glow-strong:0 0 60px rgba(0,255,136,.25);
  --overlay:rgba(5,13,9,.85);
}
[data-theme="light"]{
  --bg-primary:#f0fdf4;--bg-secondary:#e8f8ed;--bg-tertiary:#d1f2de;
  --bg-card:rgba(255,255,255,.8);--bg-card-hover:rgba(255,255,255,.95);
  --text-primary:#052e16;--text-secondary:#14532d;--text-muted:#6b8f7b;
  --border:rgba(5,150,105,.15);--border-hover:rgba(5,150,105,.35);
  --glow:0 0 30px rgba(16,185,129,.1);--glow-strong:0 0 60px rgba(16,185,129,.15);
  --overlay:rgba(240,253,244,.9);--neon:#059669;--neon-dim:#047857;
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-body);background:var(--bg-primary);color:var(--text-primary);
  transition:var(--transition-theme);overflow-x:hidden;line-height:1.6}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%}

/* === NAV === */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:1000;
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  background:var(--overlay);border-bottom:1px solid var(--border);transition:var(--transition-theme)}
.nav-inner{max-width:1280px;margin:0 auto;padding:0 2rem;height:100%;
  display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:.6rem;font-family:var(--font-display);
  font-weight:800;font-size:1.35rem;letter-spacing:-.02em}
.nav-logo img{height:32px;display:block}
.nav-links{display:flex;align-items:center;gap:2rem}
.nav-links a{font-size:.875rem;font-weight:500;color:var(--text-secondary);
  transition:color .3s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--neon)}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;
  background:var(--neon);transition:width .3s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-controls{display:flex;align-items:center;gap:.75rem}
.lang-switcher{position:relative}
.lang-btn{background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);
  padding:.4rem .75rem;border-radius:8px;font-size:.8rem;cursor:pointer;
  font-family:var(--font-body);transition:all .3s;display:flex;align-items:center;gap:.35rem}
.lang-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}
.lang-dropdown{position:absolute;top:calc(100% + 8px);right:0;background:var(--bg-secondary);
  border:1px solid var(--border);border-radius:10px;overflow:hidden;opacity:0;
  pointer-events:none;transform:translateY(-8px);transition:all .25s;min-width:140px;z-index:10}
.lang-dropdown.active{opacity:1;pointer-events:all;transform:translateY(0)}
.lang-dropdown button{display:block;width:100%;padding:.6rem 1rem;border:none;background:none;
  color:var(--text-secondary);font-size:.8rem;cursor:pointer;text-align:left;
  font-family:var(--font-body);transition:all .2s}
.lang-dropdown button:hover{background:var(--bg-card);color:var(--neon)}
.lang-dropdown button.active{color:var(--neon)}
.theme-toggle{width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:var(--bg-card);color:var(--text-secondary);cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:all .3s}
.theme-toggle:hover{border-color:var(--border-hover);color:var(--neon);box-shadow:var(--glow)}
.theme-toggle svg{width:18px;height:18px;transition:transform .4s}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:4px;
  background:none;border:none;z-index:1001}
.hamburger span{display:block;width:22px;height:2px;background:var(--text-primary);
  border-radius:2px;transition:all .3s}
.mobile-menu{display:none}
.nav-cta{display:inline-flex;align-items:center;padding:.5rem 1.2rem;border-radius:8px;font-size:.8rem;font-weight:600;
  background:linear-gradient(135deg,var(--green-600),var(--neon-dim));color:#fff;
  border:none;cursor:pointer;font-family:var(--font-body);transition:all .3s;white-space:nowrap;text-decoration:none}
.nav-cta:hover{box-shadow:var(--glow-strong);transform:translateY(-1px)}

/* === SECTION COMMON === */
.section{padding:6rem 2rem;position:relative}
.section-inner{max-width:1200px;margin:0 auto}
.section-label{display:inline-flex;align-items:center;gap:.5rem;font-size:.78rem;
  font-weight:600;color:var(--neon);text-transform:uppercase;letter-spacing:.1em;
  margin-bottom:1rem}
.section-label::before{content:'';width:20px;height:1px;background:var(--neon)}
.section-title{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,2.8rem);
  font-weight:800;letter-spacing:-.02em;margin-bottom:1rem;line-height:1.2}
.section-desc{color:var(--text-secondary);font-size:1.05rem;max-width:600px;line-height:1.7;margin-bottom:3.5rem}
.section-center{text-align:center}
.section-center .section-desc{margin-left:auto;margin-right:auto}

/* === FOOTER === */
.footer{border-top:1px solid var(--border);background:var(--bg-secondary);padding:4rem 2rem 2rem}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3rem}
.footer-brand .footer-logo{display:flex;align-items:center;gap:.5rem;
  font-family:var(--font-display);font-weight:800;font-size:1.2rem;margin-bottom:1rem}
.footer-brand .footer-logo img{height:24px;display:block}
.footer-brand p{color:var(--text-muted);font-size:.85rem;line-height:1.6;max-width:280px}
.footer-col h4{font-family:var(--font-display);font-size:.85rem;font-weight:700;
  margin-bottom:1.25rem;color:var(--text-primary)}
.footer-col a{display:block;font-size:.85rem;color:var(--text-muted);
  padding:.3rem 0;transition:color .3s}
.footer-col a:hover{color:var(--neon)}
.footer-bottom{padding-top:2rem;border-top:1px solid var(--border);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-bottom p{font-size:.78rem;color:var(--text-muted)}
.footer-social{display:flex;gap:.75rem}
.footer-social a{width:36px;height:36px;border-radius:8px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;transition:all .3s;
  color:var(--text-muted)}
.footer-social a:hover{border-color:var(--neon);color:var(--neon);box-shadow:var(--glow)}

/* === ANIMATIONS === */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.1s}.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}.reveal-delay-4{transition-delay:.4s}
.reveal-delay-5{transition-delay:.5s}

/* === LEGAL / DOCUMENT PAGES SHARED === */
.toc{position:sticky;top:calc(var(--nav-h) + 2rem);background:var(--bg-card);
  border:1px solid var(--border);border-radius:16px;padding:1.5rem;backdrop-filter:blur(10px)}
.toc-title,.toc h3{font-family:var(--font-display);font-size:.85rem;font-weight:700;
  color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:1rem;
  padding-bottom:.75rem;border-bottom:1px solid var(--border)}
.toc-list{display:flex;flex-direction:column;gap:.25rem}
.toc-list a{display:block;font-size:.82rem;color:var(--text-secondary);padding:.4rem .75rem;
  border-radius:8px;transition:all .2s;border-left:2px solid transparent}
.toc-list a:hover{color:var(--neon);background:rgba(0,255,136,.05);border-left-color:var(--neon)}
.toc-list a.active{color:var(--neon);background:rgba(0,255,136,.08);border-left-color:var(--neon);font-weight:600}
.toc-toggle{display:none;width:100%;padding:.85rem 1.25rem;background:var(--bg-card);
  border:1px solid var(--border);border-radius:12px;color:var(--text-primary);
  font-family:var(--font-body);font-size:.9rem;font-weight:600;cursor:pointer;
  margin-bottom:1rem;text-align:left;
  display:none;align-items:center;justify-content:space-between}
.toc-toggle svg{width:18px;height:18px;transition:transform .3s;color:var(--text-muted)}
.toc-toggle.open svg,.toc-toggle.expanded svg{transform:rotate(180deg)}

.back-to-top{position:fixed;bottom:2rem;right:2rem;width:44px;height:44px;border-radius:12px;
  background:var(--bg-card);border:1px solid var(--border);color:var(--text-secondary);
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:all .3s;opacity:0;pointer-events:none;transform:translateY(10px);
  backdrop-filter:blur(10px);z-index:999}
.back-to-top.visible{opacity:1;pointer-events:all;transform:translateY(0)}
.back-to-top:hover{border-color:var(--neon);color:var(--neon);box-shadow:var(--glow);transform:translateY(-2px)}
.back-to-top svg{width:20px;height:20px}

/* === RESPONSIVE === */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav-links,.nav-cta{display:none}
  .hamburger{display:flex}
  .mobile-menu{display:none;position:fixed;inset:0;top:var(--nav-h);background:var(--overlay);
    backdrop-filter:blur(20px);z-index:999;flex-direction:column;padding:2rem;gap:1rem}
  .mobile-menu.active{display:flex}
  .mobile-menu a{font-size:1.1rem;padding:.75rem 0;border-bottom:1px solid var(--border);
    color:var(--text-secondary)}
  .mobile-menu .nav-cta-mobile{display:block;margin-top:1rem;padding:.85rem;text-align:center;
    border-radius:12px;background:linear-gradient(135deg,var(--green-500),var(--neon-dim));
    color:#fff;font-weight:600;border:none;width:100%;font-size:1rem;cursor:pointer;
    font-family:var(--font-body)}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .footer-bottom{flex-direction:column;text-align:center}
  .section{padding:4rem 1.25rem}
  .toc-toggle{display:flex}
}